28848686440 has 64 divisors (see below), whose sum is σ = 74416579200. Its totient is φ = 9859746048.

The previous prime is 28848686437. The next prime is 28848686443. The reversal of 28848686440 is 4468684882.

It is an interprime number because it is at equal distance from previous prime (28848686437) and next prime (28848686443).

It is not an unprimeable number, because it can be changed into a prime (28848686443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73750 + ... + 251269.

It is an arithmetic number, because the mean of its divisors is an integer number (1162759050).

Almost surely, 2^28848686440 is an apocalyptic number.

28848686440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28848686440 is an abundant number, since it is smaller than the sum of its proper divisors (45567892760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28848686440 is a wasteful number, since it uses less digits than its factorization.

28848686440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325354 (or 325350 counting only the distinct ones).

The product of its (nonzero) digits is 18874368, while the sum is 58.

The spelling of 28848686440 in words is "twenty-eight billion, eight hundred forty-eight million, six hundred eighty-six thousand, four hundred forty".